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Finding the Fourth Proportional to 472.48, 652 and 262.65

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Solution

The fourth proportional to 472.48, 652 and 262.65 is: 362.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    472.48 : 652 = 262.65 : x
  2. Step 2: Convert to fraction form
    472.48/652 = 262.65/x
  3. Step 3: Cross multiply
    472.48x = 652 × 262.65
  4. Step 4: Simplify right side
    472.48x = 171,247.80
  5. Step 5: Solve for x
    x = 171,247.80/472.48
  6. Step 6: Final answer
    x = 362.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.